Electronic reactive power regulator
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United States of America Patent
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-
Nov 16, 1982
Grant Date -
N/A
app pub date -
Apr 7, 1980
filing date -
Apr 7, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic reactive power regulator is provided for controlling the number of power factor correction capacitors or reactors connected to an electrical power network. A multiplier circuit measures the reactive power in the power network by receiving two input signals which vary in phase angle and amplitude to indicate the amount of reactive power. The multiplier outputs a signal whose DC component indicates the amount of reactive power. This DC component is compared to upper and lower reference limits, and if either of said limits is exceeded, one of two control signals triggers a logic circuit to selectively connect or disconnect the lowest value correction capacitor to the electrical network which is not already connected or disconnected.
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